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2 years ago

15 cm equals_____ mm

Mathematics

2 answers:

Radda [10]2 years ago

4 0

Answer:

I the answer would be 150 millimeters.

Fudgin [204]2 years ago

3 0

<h3>Answer: 150 mm</h3>

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Work Shown:

1 cm = 10 mm

15*(1 cm) = 15*(10 mm) ...... multiplying both sides by 15

15 cm = 150 mm

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Please help me with 2b ASAP. <br> Really appreciate it!!

Bogdan [553]

$f(x)=\dfrac{x^2}{x^2+k^2}$

By definition of the derivative,

$f'(x)=\displaystyle\lim_{h\to0}\frac{\frac{(x+h)^2}{(x+h)^2+k^2}-\frac{x^2}{x^2+k^2}}h$

$f'(x)=\displaystyle\lim_{h\to0}\frac{(x+h)^2(x^2+k^2)-x^2((x+h)^2+k^2)}{h(x^2+k^2)((x+h)^2+k^2)}$

$f'(x)=\dfrac{k^2}{x^2+k^2}\displaystyle\lim_{h\to0}\frac{(x+h)^2-x^2}{h((x+h)^2+k^2)}$

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3 years ago

The Rockwell hardness of a metal is determined by impressing a hardened point into the surface of the metal and then measuring t

gayaneshka [121]

Answer:

Answer for the question:

The Rockwell hardness of a metal is determined by impressing a hardened point into the surface of the metal and then measuring the depth of penetration of the point. Suppose the Rockwell hardness of a particular alloy is normally distributed with mean 69 and standard deviation 2.7.

a. If a specimen is acceptable only if its hardness is between 67 and 75, what is the probability that a randomly chosen specimen has an acceptable hardness?

b. If the acceptable range of hardness is (69-C, 69+C), for what value of C would 95% of all specimens have acceptable hardness?

c. If the acceptable range is as in part (a) and the hardness of each of ten randomly selected specimens is independently determined, what is the expected number of acceptable specimens among the ten?

d. What is the probability that at most eight of ten independently selected specimens have a hardness of less than 72.84(HINT Y=number among the ten specimens with hardness less than72.84 is a binomial variable; what is p?)

is given in the attachment.

Step-by-step explanation:

Download pdf

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3 years ago

Find the area of the shape shown below.

11111nata11111 [884]

Answer:

The area is 31.5

Step-by-step explanation:

first you find the area of the rectangle (l x w) = 21

next you find the area of the triangle (b x h x 1/2) = 10.5

then you add the two areas together = 31.5

good luck with your khan academies :)

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3 years ago

PLEASE I NEED THIS DONE BECAUSE IVE BEEN WORKING ON THIS ALL DAY! AND IT IS MY LAST QUESTION!

GarryVolchara [31]

Y<3x-3 = 17÷398 because it will help you fond the answer. for example. 398 is the answer because. it was around for a few thousand years ago do have fun kiddo

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3 years ago

You save 15 a week. How much will you have saved after w weeks? Answer construct a verbal model

liraira [26]

Answer:

With every week you save, 15 more dollars are added into your savings.

Step-by-step explanation:

$\left[\begin{array}{ccc}15(1)=15&15(2)=30&15(3)=45\\15(4)=60&15(5)=75&15(6)=90\\15(7)=105&15(8)=120&15(9)=135\end{array}\right]$

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3 years ago